Program Staff

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Madelyn Creedon

Director and Chair

Madelyn Creedon is director and chair of the Nuclear Security Working Group and a research professor of international affairs at the George Washington University Elliott School of International Affairs.

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Brian Radzinsky

Deputy Director

Brian Radzinsky is deputy director of the Nuclear Security Working Group and a Phd Candidate-in-Residence at the Institute for Security and Conflict Studies.

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Hannah Lloyd-Barker

Program Manager

Hannah Lloyd-Barker works as a program manager for the Nuclear Security Working Group. She has worked for the Department of Energy/National Nuclear Security Administration, the Department of Defense, the Senate Armed Services Committee, and the House of Representatives. She is a graduate of Georgetown University with a Master’s Degree in Security Studies, specializing in International Nuclear Security. 

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Hannah Mezei

Research Assistant

Hannah Mezei works as a research assistant for the Nuclear Security Working Group. She is a second-year Master’s candidate in the Asian Studies program at the George Washington University Elliott School of International Affairs with a thematic concentration on China and a professional concentration on security issues within the Asia-Pacific.

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